What is wavelength ?

Question

Can anyone tell me what is wavelength related to electromagnetic radiations ?

Answer 1

In physics wavelength is the distance between repeating units of a propagating wave of a given frequency. It is commonly designated by the Greek letter lambda (λ). Examples of wave-like phenomena are light, water waves, and sound waves. The wavelength is related to the frequency by the formula: wavelength = wave speed / frequency. Wavelength is therefore inversely proportional to frequency. Higher frequencies have shorter wavelengths. Lower frequencies have longer wavelengths, assuming the speed of the wave is the same.

Answer 2

electromagnetic radiations are waves

wavelength is the length of a single cycle of a wave, as measured by the distance between one peak or trough of a wave and the next; it is often designated in physics as λ, and corresponds to the velocity of the wave divided by its frequency . It is the distance between periodic spatial repetitions of an electromagnetic wave at a given instant of time.

or it is the distance between one peak of a wave and the next corresponding peak.